EP0361370B1 - Lecteur de carte à circuit intégré - Google Patents

Lecteur de carte à circuit intégré Download PDF

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Publication number
EP0361370B1
EP0361370B1 EP89117691A EP89117691A EP0361370B1 EP 0361370 B1 EP0361370 B1 EP 0361370B1 EP 89117691 A EP89117691 A EP 89117691A EP 89117691 A EP89117691 A EP 89117691A EP 0361370 B1 EP0361370 B1 EP 0361370B1
Authority
EP
European Patent Office
Prior art keywords
contact
chip card
card reader
spring
contact spring
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
EP89117691A
Other languages
German (de)
English (en)
Other versions
EP0361370A3 (en
EP0361370A2 (fr
Inventor
Manfred Reichardt
Robert Bleier
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Amphenol Tuchel Electronics GmbH
Original Assignee
Amphenol Tuchel Electronics GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Amphenol Tuchel Electronics GmbH filed Critical Amphenol Tuchel Electronics GmbH
Publication of EP0361370A2 publication Critical patent/EP0361370A2/fr
Publication of EP0361370A3 publication Critical patent/EP0361370A3/en
Application granted granted Critical
Publication of EP0361370B1 publication Critical patent/EP0361370B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R12/00—Structural associations of a plurality of mutually-insulated electrical connecting elements, specially adapted for printed circuits, e.g. printed circuit boards [PCB], flat or ribbon cables, or like generally planar structures, e.g. terminal strips, terminal blocks; Coupling devices specially adapted for printed circuits, flat or ribbon cables, or like generally planar structures; Terminals specially adapted for contact with, or insertion into, printed circuits, flat or ribbon cables, or like generally planar structures
    • H01R12/70—Coupling devices
    • H01R12/71—Coupling devices for rigid printing circuits or like structures
    • H01R12/72—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures
    • H01R12/721—Coupling devices for rigid printing circuits or like structures coupling with the edge of the rigid printed circuits or like structures cooperating directly with the edge of the rigid printed circuits
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01R—ELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00—Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/02—Contact members
    • H01R13/26—Pin or blade contacts for sliding co-operation on one side only

Definitions

  • the invention relates to a chipcard reader using a set of contact springs.
  • the present invention is directed to overcoming one or more of the problems as set forth above.
  • a good contacting effect is to be achieved.
  • the contact springs as well as the set of contact springs are designed such that they can easily be assembled, without requiring that the contact springs be surrounded by material during molding.
  • the contact springs of the chip card reader are of such a design that they can be used together with a contact support into which a plurality of contact springs is simultaneously inserted and mounted in accordance with the so-called "comb assembly technique".
  • the comb assembly technique is a method according to which a plurality of contact springs, still attached to a common support strip, are simultaneously inserted and located in the contact support.
  • the contact support is preferably a single piece component.
  • the contact springs are biased after they are inserted into said contact support such that the spring characteristic starts with values F of the force being larger than zero.
  • a chip card reader having a contact spring which provides for a sliding contacting engagement and can be readily inserted with bias into a contact support, so as to form a set of contact elements.
  • Fig. 1 shows schematically in a perspective representation a set 1 of contact springs 2 adapted to contact the contact areas of a chipcard 3.
  • the set 1 of contact elements 2 will be called a "contact set” 1 i.e. a row of contacts 2 which are somehow mounted in a contact support 5.
  • the contact support 5, forms part of a chipcard reader.
  • the chipcard reader would allow the proper insertion of the chipcard 3 for bringing the (not shown) contact areas of the chipcard 3 into contact with the contact springs 2.
  • the contact set 1 is adapted to be connected with some apparatus, for instance, a telephone, which will make use of the data read from the chip of the chipcard 3.
  • the lower ends of the contact springs 2 are connected for said purpose in a well-known manner to said apparatus 4.
  • Fig. 1 shows schematically not only the spring contacts 2 of the first embodiment of the invention, but also refers to the spring contacts 200 of a second embodiment of the invention.
  • Fig. 1 refers to guide grooves 14 of the first embodiment as well as guide grooves 140 of the second embodiment, both said grooves will be described later.
  • the contact support 5 of Fig. 1 comprises an upper wall 6, a side wall 7, a front wall 8 and another (right) side wall 9 as well as a rear wall 13.
  • each contact spring 2 preferably, however, a plurality of contact springs 2 are mounted.
  • guide grooves 14 are provided, adapted to receive contact springs 2.
  • Each of said guide grooves 14 comprises a narrow portion 15 as well as a wider portion 16.
  • the wider portion 16 continues in the side wall 7, as can be seen in Fig. 4.
  • Reference numeral 17 refers to the separating line between the narrower portion and the wider portion 16.
  • the contact spring 2 is preferably a stamped resilient metal strip.
  • the contact spring 2 comprises (see specifically Fig. 2), starting from the left, a termination portion 21 in the form of a solder termination portion. Then, continuing from the left in Fig. 2, the contact spring 2 comprises second detent means 22 in the form of a second tab section 22 formed by means of two tabs 23, 24 (see Fig. 4). Adjacent to said second tab section 22 an angular portion 28 (see Figs. 2 and 6) can be recognized, as well as adjacent thereto first detent means in the form of a first tab section 25, which comprises two tabs 26 and 27 (see Fig. 3).
  • Adjacent to the first detent means 25 extends substantially in the X-direction (see Fig. 3) a longitudinal portion 28 which becomes a ramp portion 30 and a ramp portion 32 forming a cusp 31. Adjacent and to the right of cusp 31 the free end of the contact spring forms an abutment portion 33.
  • the angle of ramp portion 30 is referred to by gamma.
  • the termination portion 21 extends substantially in Y-direction.
  • the contact spring 2 is formed by two spring legs, a first spring leg 70 and a second spring leg 71.
  • the leg 71 forms an angle of 90 ° with respect to the leg 70.
  • the so-called angular portion 28 comprises a curved portion 73 and a straight portion 74.
  • Fig. 7 discloses that the straight portion 74 and the straight longitudinal portion 29 are not located on one line, but form an angle alpha, smaller than 180°; for instance, alpha is 170°.
  • the cusp shape of the contact spring (contact element) 2 forms a small ramp angle gamma which is, for instance, in the order of 30°, so that no deformation of the contact spring 2 occurs if the chipcard 3 comes into sliding engagement with said contact spring 2.
  • Fig. 7 shows a contact spring 2 in its shape prior to the insertion into the contact support (housing) 5, while the other Figs. 2-6 show the contact spring 2 in its shape after insertion into the contact support 5.
  • the contact spring 2 is symmetric with respect to center line 53 (see Fig. 3) and is located in the appropriate guide groove 14.
  • the contact support 5 which is preferably of a one-piece design, will be explained.
  • the contact elements 2 can be inserted in such a manner that they are fixedly mounted due to the above detent means, and they are also, after being properly inserted, biased so that the spring characteristic of a contact spring (contact element) 2 starts with a force F which is larger than zero.
  • first counter detent means are provided in the form of two detent noses 43 at the contact support 5.
  • the detent noses 42 are provided at a connecting member 38 of the contact support 5.
  • Said first counter detent means 43 cooperate with the first detent means 25 of the contact spring 2.
  • second counter detent means 12 are provided in the form of two detent noses 24 which again are provided at the contact support 5, particularly the connecting member 38 of said support 5.
  • the noses 43 and 24, respectively, form detent surfaces which are offset with respect to each other by 90°.
  • the second detent means 22 cooperate with said second counter detent means 42.
  • the first and second tab sections 25 and 22 have substantially the same shape and a width 51 (see Fig. 4) which corresponds in substance to the width of the widened portion 16, but is naturally somewhat smaller, so that the contact springs can be inserted.
  • the width 50 (see Fig. 4) of the contact springs 2 corresponds in substance to the width of the smaller portion 15 of the guide groove 14, but is naturally somewhat smaller than said width. Thus, a good guidance effect is provided for said contact springs 2.
  • the assembly of the contact springs 2 is carried out in accordance with the so-called "comb assembly technique", i. e. a comb of contact springs 2 is used.
  • a comb of contact springs is generated during the stamping process, after which the individual contact springs 2 are still an integral part of a metal strip connecting all said contact springs.
  • This entire “comb” is placed on the contact support 5 such that initially the second detent means 22 are brought into engagement with the second counter detent means 42, whereupon then the contact springs 2 are slidably pressed along the inclined plane 40 up until the first detent means are inserted behind the first counter detent means 43, while at the same time the free ends of the springs, i. e.
  • Figs. 8 through 11 disclose a second embodiment of the invention.
  • the contact set is referred to by reference numeral 100 and the contact spring is referred to by reference numeral 200. Similar to the first embodiment, a contact support 500 is provided. The upper wall of the contact support is referred to by reference numeral 6 similar to Fig. 1.
  • guide grooves 140 (referred to with reference numeral 14 in the first embodiment) are provided, which could also be called contact chambers.
  • the contact springs 200 are located.
  • the wider portion of the guide groove 140 is referred to by reference numeral 160 (see Fig. 9).
  • an angular bar 36 provides abutment means for the free end or abutment portion 33 of the contact element 200.
  • a connecting member 380 similar to contacting member 38 in the first embodiment, is provided but forms here only one counter detent means in the form of two detent noses 430. Similar to what was described in connection with Fig. 6 the second embodiment features a guide surface 400 similar to guide surface 40 of the first embodiment. Offset in upward and in leftward direction (see Fig. 8) with respect to the upper end of the connecting member 38, a cross member or abutment means 80 is provided, and the contact spring 200 is in contact with the bottom side of said contact means 80.
  • the contact spring 200 is of a somewhat different design than the contact spring of Fig. 7.
  • the first contact legs 70 of both springs 2 and 200 are of identical design, but the second leg 710 of the spring 200 is simply a straight portion 48 which does not possess a portion corresponding to the angular portion 28 of spring 2.
  • the straight portion 48 is used as a termination portion.
  • an angle alpha in the range of 170° is formed between the straight portion 48 and the longitudinal portion 29 of the first leg 70.
  • the contact spring 200 comprises only first detent means in the form of a first detent section 25, said detent section 25 again comprising, similarly to contact spring 2, tabs 26 and 27.
  • the tab section 25 is preferably located just in the longitudinal portion 29, so that the angular deflection about the angle alpha occurs only to the left (see Fig. 11) adjacent to the tab section 25.
  • a contact spring 200 having an angle alpha of 180°.
  • the arrangement of the cross bar 80 and of thebar 36 as well as of the upper abutment surface of the tab member 380 is selected such that the spring 200 is biased after being insered.
  • the second embodiment discloses that the principle of a biased spring can also be used for a straight spring contact.
  • the detent means 25 provide for abutment in both longitudinal directions instead of the noses 42, which provides for an opposing bearing means for creating the bias, the cross bar 80 is used in connection with the contact support 500.
  • Fig. 12 discloses a third embodiment of a contact set 800 which comprises a contact support 806 and contact springs 801.
  • Contact spring 801 is substantially similar to contact spring 200 shown in Fig. 11; i.e. in the position shown in Fig. 12 the contact spring 801 is in its biased condition.
  • the abutment means 80 of Fig. 12 are similar to the abutment means 80 of Fig. 8, the same is true for the angular tab member 36.
  • Connecting member 381 of Fig. 12 is of mirror-like design to the connecting member 380 of Fig. 8.
  • the connecting member 381 comprises an abutment surface 382 located on the right-hand side of tabs 25 of the spring 801.
  • Connecting member 381 further comprises guide surfaces 383 similar to the guide surfaces 400 of Figs. 8 and 9.
  • the contact springs 801 are inserted from the right with the tabs 25 sliding along the ramp-shaped guide surfaces 383 until the tabs 25 come into engagement with the abutment surfaces 382.

Landscapes

  • Coupling Device And Connection With Printed Circuit (AREA)

Claims (23)

  1. Lecteur de carte à puce comprenant :
    un jeu d'éléments de contact pour mettre en contact une carte à puce, ledit jeu d'éléments de contact comprenant un support de contact d'une seule pièce (5) définissant une paroi supérieure et au moins un, de préférence une pluralité de ressorts de contact (2) disposés dans ledit support de contact, dans lequel
    chacun desdits ressorts de contact (2) comprend une partie de terminaison (21), lesdits ressorts de contact étant disposés dans des rainures (chambres) (14) du support de contact,
    lesdites rainures (chambres) (14) s'étendent dans la paroi supérieure du support de contact pour recevoir lesdits ressorts de contact,
    les ressorts de contact (2) comprennent des premiers dispositifs de détente, les ressorts de contact sont adaptés pour être insérés dans le support de contact de sorte qu'ils sont en prise avec le dispositif de contre-détente formé par ledit support de contact,
    les ressorts de contact sont montés de façon fixe entre deux points, et ainsi lesdits ressorts de contact sont tendus dans leur mise en prise de détente, c'est à dire dans leur état inséré.
  2. Lecteur de carte à puce selon la revendication 1, caractérisé en ce que lesdits premiers dispositifs de détente sont fournis sous la forme de sections d'oreille (26, 27).
  3. Lecteur de carte à puce selon l'une quelconque des revendications précédentes dans lequel ledit support de contact comprend un dispositif d'aboutement (36) pour l'extrémité libre ou la partie d'aboutement (33) du ressort de contact.
  4. Lecteur de carte à puce selon l'une quelconque des revendications précédentes dans lequel lesdits dispositifs de contre-détente sont formés par des becs (43, 42) du support de contact (5).
  5. Lecteur de carte à puce selon la revendication 4 dans lequel lesdits becs sont formés sur un élément de liaison (18) dudit support de contact (5).
  6. Lecteur de carte à puce selon l'une quelconque des revendications précédentes dans lequel attenant auxdits dispositifs de contre-détente (43) des dispositifs de guidage (40 ; 400) sont fournis, qui permettent pendant l'assemblage un déplacement coulissant du ressort de contact le long desdits dispositifs de détente jusqu'à ce qu'il vienne en prise avec lesdits dispositifs de contre-détente.
  7. Lecteur de carte à puce selon la revendication 6, dans lequel lesdits dispositifs de guidage ont des surfaces de guidage sous la forme d'un plan incliné (40 ; 400).
  8. Lecteur de carte à puce selon la revendication 7 dans lequel les surfaces de guidage sont formées sur un élément de liaison (38).
  9. Lecteur de carte à puce selon l'une quelconque des revendications précédentes dans lequel ladite rainure (14) comprend une partie étroite (15) et attenant à celle-ci une partie large (16).
  10. Lecteur de carte à puce selon l'une quelconque des revendications précédentes dans lequel un élément transversal ou un dispositif d'aboutement (80) est placé pour qu'une partie droite (48) du ressort de contact (200) soit montée de façon fixe afin d'être tendue avec son extrémité libre (33) contre un dispositif d'aboutement (36).
  11. Lecteur de carte à puce selon la revendication 10 dans lequel le ressort de contact est en aboutement avec le côté inférieur du dispositif d'aboutement (800), est situé sur une partie de liaison (38) et est maintenu par rapport audit élément de liaison au moyen d'une première section d'oreille (25) du ressort de contact.
  12. Lecteur de carte à puce selon l'une quelconque des revendications précédentes dans lequel la tension du ressort de contact (200) pour des points de montage situés dans un plan est fournie par un angle obtus alpha entre des première et seconde branches (70, 71) du ressort de contact.
  13. Lecteur de carte à puce selon la revendication 10 ou 11 dans lequel la tension du ressort de contact (200) est fournie de manière à ce qu'une barre angulaire (36) soit décalée en élévation par rapport au montage du ressort de contact (200) au moyen des éléments de liaison (38, 80).
  14. Lecteur de carte à puce selon l'une quelconque des revendications précédentes dans lequel un angle entre des première et seconde branches (70, 71) du ressort de contact est approximativement de 90°.
  15. Lecteur de carte à puce selon la revendication 14 dans lequel un autre second dispositif de détente (22) est placé dans la zone de ladite seconde branche (71).
  16. Lecteur de carte à puce selon la revendication 15 dans lequel lesdits premier et second dispositifs de détente (22, 25) sont de conception identique.
  17. Lecteur de carte à puce selon la revendication 2 dans lequel chaque section d'oreille (15, 22) comprend deux oreilles disposées symétriquement par rapport à ladite ligne médiane.
  18. Lecteur de carte à puce selon la revendication 17 dans lequel une section d'oreille est formée dans une première branche de ressort, alors que la seconde section d'oreille est formée dans une seconde branche de ressort dudit ressort de contact.
  19. Lecteur de carte à puce selon une ou plusieurs des revendications 17 ou 18 dans lequel un sommet est fourni par ledit ressort formant un petit angle gamma par rapport au plan à partir duquel s'étend ledit sommet.
  20. Lecteur de carte à puce selon la revendication 15 ou 16 dans lequel attenant audit second dispositif de détente, une partie de terminaison (21), par exemple, pour la soudure, est fournie.
  21. Lecteur de carte à puce selon l'une quelconque des revendications précédentes dans lequel la largeur (50) du ressort de contact est approximativement trois fois l'épaisseur (52) du ressort de contact.
  22. Lecteur de carte à puce selon un ou plusieurs des revendications 2 à 21 dans lequel la largeur du ressort de contact dans la zone des sections d'oreille est environ deux fois la largeur (50) du ressort en dehors desdites sections d'oreille.
  23. Lecteur de carte à puce selon l'une quelconque des revendications précédentes caractérisé en ce que les ressorts de contact sont insérés dans le support de contact selon une technique de montage en peigne.
EP89117691A 1988-09-24 1989-09-25 Lecteur de carte à circuit intégré Expired - Lifetime EP0361370B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3832588 1988-09-24
DE3832588A DE3832588C2 (de) 1988-09-24 1988-09-24 Kontaktsatz

Publications (3)

Publication Number Publication Date
EP0361370A2 EP0361370A2 (fr) 1990-04-04
EP0361370A3 EP0361370A3 (en) 1990-10-31
EP0361370B1 true EP0361370B1 (fr) 1996-03-13

Family

ID=6363694

Family Applications (1)

Application Number Title Priority Date Filing Date
EP89117691A Expired - Lifetime EP0361370B1 (fr) 1988-09-24 1989-09-25 Lecteur de carte à circuit intégré

Country Status (4)

Country Link
US (1) US4975086A (fr)
EP (1) EP0361370B1 (fr)
JP (1) JP2863211B2 (fr)
DE (1) DE3832588C2 (fr)

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US6830474B2 (en) * 2002-08-16 2004-12-14 Carry Computer Eng Co. Ltd. Common connector with embedded pins
JP4184251B2 (ja) * 2003-12-17 2008-11-19 第一電子工業株式会社 カードコネクタ
KR100711292B1 (ko) * 2005-04-14 2007-04-25 한국과학기술원 프로브 카드 및 그 제조방법
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Also Published As

Publication number Publication date
EP0361370A3 (en) 1990-10-31
US4975086A (en) 1990-12-04
EP0361370A2 (fr) 1990-04-04
DE3832588A1 (de) 1990-03-29
JPH02121285A (ja) 1990-05-09
JP2863211B2 (ja) 1999-03-03
DE3832588C2 (de) 1994-06-01

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